[CentOS] update repo problem?

I'm trying to install the build dependencies for an SRPM using
yum-builddep, and it's telling me that it can't get the repo sqlite
file for updates-source from vault. Any ideas? Something wrong with my
repo configuration?  The only thing I've done that should have touched
the repo configuration is installing epel-release-7-1.noarch.

Thanks!
Eric

[root at localhost SRPMS]# yum-builddep somepackage-3.1-2.fc22.src.rpm
Loaded plugins: fastestmirror
Enabling base-source repository
Enabling epel-source repository
Enabling extras-source repository
Enabling updates-source repository
Loading mirror speeds from cached hostfile
 * base: dallas.tx.mirror.xygenhosting.com
 * epel: mirror.hmc.edu
 * epel-source: mirror.hmc.edu
 * extras: centos.hostingxtreme.com
 * updates: mirrors.adams.net
updates-source/7/primary_db    FAILED
http://vault.centos.org/centos/7/updates/Source/repodata/fff7caf629c103f81132274
050837a196eafd2082a18d3a390dd288a2376f258-primary.sqlite.bz2: [Errno 14] HTTP Er
ror 404 - Not Found
Trying other mirror.
http://vault.centos.org/centos/7/updates/Source/repodata/fff7caf629c103f81132274
050837a196eafd2082a18d3a390dd288a2376f258-primary.sqlite.bz2: [Errno 14] HTTP Er
ror 404 - Not Found
Trying other mirror.
failure: repodata/fff7caf629c103f81132274050837a196eafd2082a18d3a390dd288a2376f2
58-primary.sqlite.bz2 from updates-source: [Errno 256] No more mirrors to try.
http://vault.centos.org/centos/7/updates/Source/repodata/fff7caf629c103f81132274
050837a196eafd2082a18d3a390dd288a2376f258-primary.sqlite.bz2: [Errno 14] HTTP Er
ror 404 - Not Found